ID

46177

Descrizione

Principal Investigator: James T. Elder, Department of Dermatology, University of Michigan, Ann Arbor, MI, USA MeSH: Arthritis, Psoriatic https://www.ncbi.nlm.nih.gov/projects/gap/cgi-bin/study.cgi?study_id=phs000982 This study is a genome-wide study of genetic associations with psoriatic arthritis (PsA), an inflammatory musculoskeletal condition that develops in up to 30% of people who have chronic psoriasis skin lesions. 1,526 cases affected with psoriatic arthritis and 1,508 unaffected controls were recruited and typed on the Illumina HumanOmni1-Quad BeadChip array. After application of quality control measures to both samples and SNPs, genotypes for 791,217 autosomal SNPs were available for 1,430 PsA cases and 1,417 controls. Imputation using phased haplotypes for the EUR subpopulation of release 3, phase 1 of the 1000 Genomes Project as a reference, resulted in genotypes for 11,532,644 SNPs and 918,976 indels passing our imputation quality threshold (Mach rsup2/sup ≥ 0.3) that were available for downstream analysis. Association at a genome-wide threshold of significance was found for five regions (near genes *TNIP1*, *IL12B*, *HLA-C*, *TRAF3IP2*, and *TYK2*).

collegamento

study_id=phs000982

Keywords

  1. 01/02/23 01/02/23 - Dr. med. Lucy Kessler
  2. 06/02/25 06/02/25 - Dr. Christian Niklas
Titolare del copyright

James T. Elder, Department of Dermatology, University of Michigan, Ann Arbor, MI, USA

Caricato su

6 febbraio 2025

DOI

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Licenza

Creative Commons BY 4.0

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dbGaP phs000982 Genetic Analysis of Psoriasis and Psoriatic Arthritis

Eligibility Criteria

Inclusion and exclusion criteria
Descrizione

Inclusion and exclusion criteria

Alias
UMLS CUI [1,1]
C1512693
UMLS CUI [1,2]
C0680251
Cases were all diagnosed by a rheumatologist as having psoriatic arthritis; most were evaluated using CASPAR criteria. Controls were at least 18 years of age and unaffected with either psoriasis or psoriatic arthritis. After genotyping on the Illumina array, we applied the usual quality controls measures to the samples. Samples were excluded if they represented a population outlier with substantial non-European admixture (determined with PCA), were duplicates or first or second degree relatives of other samples, had a genotype call rate < 98%, had outlier values for inbreeding coefficient ≥ 1.5 times the interquartile range beyond the lower or upper quartiles (F < -0.0225 or F > 0.0285), or were part of unresolvable sample swaps determined by X chromosome genotypes.
Descrizione

Elig.phs000982.v1.p1.1

Tipo di dati

boolean

Alias
UMLS CUI [1,1]
C3846158

Similar models

Eligibility Criteria

Name
genere
Description | Question | Decode (Coded Value)
Tipo di dati
Alias
Item Group
Inclusion and exclusion criteria
C1512693 (UMLS CUI [1,1])
C0680251 (UMLS CUI [1,2])
Elig.phs000982.v1.p1.1
Item
Cases were all diagnosed by a rheumatologist as having psoriatic arthritis; most were evaluated using CASPAR criteria. Controls were at least 18 years of age and unaffected with either psoriasis or psoriatic arthritis. After genotyping on the Illumina array, we applied the usual quality controls measures to the samples. Samples were excluded if they represented a population outlier with substantial non-European admixture (determined with PCA), were duplicates or first or second degree relatives of other samples, had a genotype call rate < 98%, had outlier values for inbreeding coefficient ≥ 1.5 times the interquartile range beyond the lower or upper quartiles (F < -0.0225 or F > 0.0285), or were part of unresolvable sample swaps determined by X chromosome genotypes.
boolean
C3846158 (UMLS CUI [1,1])

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